I currently use a 7250 (Verizon) and our company has a BES to which I am connected to; my questions are:

If I set my handheld to hold my email for 30 days (60 or 90 days for that matter), after the time is up, will the expired email(s) get permanently deleted from BOTH my handheld and desktop Outlook client? What are the gains to having messages autodelete from the handheld?

I do currently have the handheld set to hold messages forever and to prompt me to delete off the handheld and desktop. Is there any performance hit having it set this way?